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MatrixSynapse/synapse/app/homeserver.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import gc
import logging
import os
import sys
import synapse
import synapse.config.logger
from synapse import events
from synapse.api.urls import CONTENT_REPO_PREFIX, FEDERATION_PREFIX, \
LEGACY_MEDIA_PREFIX, MEDIA_PREFIX, SERVER_KEY_PREFIX, SERVER_KEY_V2_PREFIX, \
STATIC_PREFIX, WEB_CLIENT_PREFIX
from synapse.app import _base
from synapse.app._base import quit_with_error, listen_ssl, listen_tcp
from synapse.config._base import ConfigError
from synapse.config.homeserver import HomeServerConfig
from synapse.crypto import context_factory
from synapse.federation.transport.server import TransportLayerServer
from synapse.module_api import ModuleApi
from synapse.http.additional_resource import AdditionalResource
from synapse.http.server import RootRedirect
from synapse.http.site import SynapseSite
from synapse.metrics import RegistryProxy
from synapse.metrics.resource import METRICS_PREFIX
from synapse.python_dependencies import CONDITIONAL_REQUIREMENTS, \
check_requirements
from synapse.replication.http import ReplicationRestResource, REPLICATION_PREFIX
from synapse.replication.tcp.resource import ReplicationStreamProtocolFactory
from synapse.rest import ClientRestResource
from synapse.rest.key.v1.server_key_resource import LocalKey
from synapse.rest.key.v2 import KeyApiV2Resource
from synapse.rest.media.v0.content_repository import ContentRepoResource
from synapse.server import HomeServer
from synapse.storage import are_all_users_on_domain
from synapse.storage.engines import IncorrectDatabaseSetup, create_engine
from synapse.storage.prepare_database import UpgradeDatabaseException, prepare_database
from synapse.util.caches import CACHE_SIZE_FACTOR
from synapse.util.httpresourcetree import create_resource_tree
from synapse.util.logcontext import LoggingContext
from synapse.util.manhole import manhole
from synapse.util.module_loader import load_module
from synapse.util.rlimit import change_resource_limit
from synapse.util.versionstring import get_version_string
from twisted.application import service
from twisted.internet import defer, reactor
from twisted.web.resource import EncodingResourceWrapper, NoResource
from twisted.web.server import GzipEncoderFactory
from twisted.web.static import File
from prometheus_client.twisted import MetricsResource
logger = logging.getLogger("synapse.app.homeserver")
def gz_wrap(r):
return EncodingResourceWrapper(r, [GzipEncoderFactory()])
def build_resource_for_web_client(hs):
webclient_path = hs.get_config().web_client_location
if not webclient_path:
try:
import syweb
except ImportError:
quit_with_error(
"Could not find a webclient.\n\n"
"Please either install the matrix-angular-sdk or configure\n"
"the location of the source to serve via the configuration\n"
"option `web_client_location`\n\n"
"To install the `matrix-angular-sdk` via pip, run:\n\n"
" pip install '%(dep)s'\n"
"\n"
"You can also disable hosting of the webclient via the\n"
"configuration option `web_client`\n"
% {"dep": CONDITIONAL_REQUIREMENTS["web_client"].keys()[0]}
)
syweb_path = os.path.dirname(syweb.__file__)
webclient_path = os.path.join(syweb_path, "webclient")
# GZip is disabled here due to
# https://twistedmatrix.com/trac/ticket/7678
# (It can stay enabled for the API resources: they call
# write() with the whole body and then finish() straight
# after and so do not trigger the bug.
# GzipFile was removed in commit 184ba09
# return GzipFile(webclient_path) # TODO configurable?
return File(webclient_path) # TODO configurable?
class SynapseHomeServer(HomeServer):
def _listener_http(self, config, listener_config):
port = listener_config["port"]
bind_addresses = listener_config["bind_addresses"]
tls = listener_config.get("tls", False)
site_tag = listener_config.get("tag", port)
if tls and config.no_tls:
return
resources = {}
for res in listener_config["resources"]:
for name in res["names"]:
resources.update(self._configure_named_resource(
name, res.get("compress", False),
))
additional_resources = listener_config.get("additional_resources", {})
logger.debug("Configuring additional resources: %r",
additional_resources)
module_api = ModuleApi(self, self.get_auth_handler())
for path, resmodule in additional_resources.items():
handler_cls, config = load_module(resmodule)
handler = handler_cls(config, module_api)
resources[path] = AdditionalResource(self, handler.handle_request)
if WEB_CLIENT_PREFIX in resources:
root_resource = RootRedirect(WEB_CLIENT_PREFIX)
else:
root_resource = NoResource()
root_resource = create_resource_tree(resources, root_resource)
if tls:
listen_ssl(
bind_addresses,
port,
SynapseSite(
"synapse.access.https.%s" % (site_tag,),
site_tag,
listener_config,
root_resource,
self.version_string,
),
self.tls_server_context_factory,
)
else:
listen_tcp(
bind_addresses,
port,
SynapseSite(
"synapse.access.http.%s" % (site_tag,),
site_tag,
listener_config,
root_resource,
self.version_string,
)
)
logger.info("Synapse now listening on port %d", port)
def _configure_named_resource(self, name, compress=False):
"""Build a resource map for a named resource
Args:
name (str): named resource: one of "client", "federation", etc
compress (bool): whether to enable gzip compression for this
resource
Returns:
dict[str, Resource]: map from path to HTTP resource
"""
resources = {}
if name == "client":
client_resource = ClientRestResource(self)
if compress:
client_resource = gz_wrap(client_resource)
resources.update({
"/_matrix/client/api/v1": client_resource,
"/_matrix/client/r0": client_resource,
"/_matrix/client/unstable": client_resource,
"/_matrix/client/v2_alpha": client_resource,
"/_matrix/client/versions": client_resource,
})
if name == "consent":
from synapse.rest.consent.consent_resource import ConsentResource
consent_resource = ConsentResource(self)
if compress:
consent_resource = gz_wrap(consent_resource)
resources.update({
"/_matrix/consent": consent_resource,
})
if name == "federation":
resources.update({
FEDERATION_PREFIX: TransportLayerServer(self),
})
if name in ["static", "client"]:
resources.update({
STATIC_PREFIX: File(
os.path.join(os.path.dirname(synapse.__file__), "static")
),
})
if name in ["media", "federation", "client"]:
if self.get_config().enable_media_repo:
media_repo = self.get_media_repository_resource()
resources.update({
MEDIA_PREFIX: media_repo,
LEGACY_MEDIA_PREFIX: media_repo,
CONTENT_REPO_PREFIX: ContentRepoResource(
self, self.config.uploads_path
),
})
elif name == "media":
raise ConfigError(
"'media' resource conflicts with enable_media_repo=False",
)
if name in ["keys", "federation"]:
resources.update({
SERVER_KEY_PREFIX: LocalKey(self),
SERVER_KEY_V2_PREFIX: KeyApiV2Resource(self),
})
if name == "webclient":
resources[WEB_CLIENT_PREFIX] = build_resource_for_web_client(self)
if name == "metrics" and self.get_config().enable_metrics:
resources[METRICS_PREFIX] = MetricsResource(RegistryProxy())
if name == "replication":
resources[REPLICATION_PREFIX] = ReplicationRestResource(self)
return resources
def start_listening(self):
config = self.get_config()
for listener in config.listeners:
if listener["type"] == "http":
self._listener_http(config, listener)
elif listener["type"] == "manhole":
listen_tcp(
listener["bind_addresses"],
listener["port"],
manhole(
username="matrix",
password="rabbithole",
globals={"hs": self},
)
)
elif listener["type"] == "replication":
bind_addresses = listener["bind_addresses"]
for address in bind_addresses:
factory = ReplicationStreamProtocolFactory(self)
server_listener = reactor.listenTCP(
listener["port"], factory, interface=address
)
reactor.addSystemEventTrigger(
"before", "shutdown", server_listener.stopListening,
)
else:
logger.warn("Unrecognized listener type: %s", listener["type"])
def run_startup_checks(self, db_conn, database_engine):
all_users_native = are_all_users_on_domain(
db_conn.cursor(), database_engine, self.hostname
)
if not all_users_native:
quit_with_error(
"Found users in database not native to %s!\n"
"You cannot changed a synapse server_name after it's been configured"
% (self.hostname,)
)
try:
database_engine.check_database(db_conn.cursor())
except IncorrectDatabaseSetup as e:
quit_with_error(e.message)
def setup(config_options):
"""
Args:
config_options_options: The options passed to Synapse. Usually
`sys.argv[1:]`.
Returns:
HomeServer
"""
try:
config = HomeServerConfig.load_or_generate_config(
"Synapse Homeserver",
config_options,
)
except ConfigError as e:
sys.stderr.write("\n" + e.message + "\n")
sys.exit(1)
if not config:
# If a config isn't returned, and an exception isn't raised, we're just
# generating config files and shouldn't try to continue.
sys.exit(0)
synapse.config.logger.setup_logging(config, use_worker_options=False)
# check any extra requirements we have now we have a config
check_requirements(config)
version_string = "Synapse/" + get_version_string(synapse)
logger.info("Server hostname: %s", config.server_name)
logger.info("Server version: %s", version_string)
events.USE_FROZEN_DICTS = config.use_frozen_dicts
tls_server_context_factory = context_factory.ServerContextFactory(config)
database_engine = create_engine(config.database_config)
config.database_config["args"]["cp_openfun"] = database_engine.on_new_connection
hs = SynapseHomeServer(
config.server_name,
db_config=config.database_config,
tls_server_context_factory=tls_server_context_factory,
config=config,
version_string=version_string,
database_engine=database_engine,
)
logger.info("Preparing database: %s...", config.database_config['name'])
try:
db_conn = hs.get_db_conn(run_new_connection=False)
prepare_database(db_conn, database_engine, config=config)
database_engine.on_new_connection(db_conn)
hs.run_startup_checks(db_conn, database_engine)
db_conn.commit()
except UpgradeDatabaseException:
sys.stderr.write(
"\nFailed to upgrade database.\n"
"Have you checked for version specific instructions in"
" UPGRADES.rst?\n"
)
sys.exit(1)
logger.info("Database prepared in %s.", config.database_config['name'])
hs.setup()
hs.start_listening()
def start():
hs.get_pusherpool().start()
hs.get_state_handler().start_caching()
hs.get_datastore().start_profiling()
hs.get_datastore().start_doing_background_updates()
hs.get_federation_client().start_get_pdu_cache()
reactor.callWhenRunning(start)
return hs
class SynapseService(service.Service):
"""A twisted Service class that will start synapse. Used to run synapse
via twistd and a .tac.
"""
def __init__(self, config):
self.config = config
def startService(self):
hs = setup(self.config)
change_resource_limit(hs.config.soft_file_limit)
if hs.config.gc_thresholds:
gc.set_threshold(*hs.config.gc_thresholds)
def stopService(self):
return self._port.stopListening()
def run(hs):
PROFILE_SYNAPSE = False
if PROFILE_SYNAPSE:
def profile(func):
from cProfile import Profile
from threading import current_thread
def profiled(*args, **kargs):
profile = Profile()
profile.enable()
func(*args, **kargs)
profile.disable()
ident = current_thread().ident
profile.dump_stats("/tmp/%s.%s.%i.pstat" % (
hs.hostname, func.__name__, ident
))
return profiled
from twisted.python.threadpool import ThreadPool
ThreadPool._worker = profile(ThreadPool._worker)
reactor.run = profile(reactor.run)
clock = hs.get_clock()
start_time = clock.time()
stats = {}
# Contains the list of processes we will be monitoring
# currently either 0 or 1
stats_process = []
@defer.inlineCallbacks
def phone_stats_home():
logger.info("Gathering stats for reporting")
now = int(hs.get_clock().time())
uptime = int(now - start_time)
if uptime < 0:
uptime = 0
stats["homeserver"] = hs.config.server_name
stats["timestamp"] = now
stats["uptime_seconds"] = uptime
stats["total_users"] = yield hs.get_datastore().count_all_users()
total_nonbridged_users = yield hs.get_datastore().count_nonbridged_users()
stats["total_nonbridged_users"] = total_nonbridged_users
room_count = yield hs.get_datastore().get_room_count()
stats["total_room_count"] = room_count
stats["daily_active_users"] = yield hs.get_datastore().count_daily_users()
stats["daily_active_rooms"] = yield hs.get_datastore().count_daily_active_rooms()
stats["daily_messages"] = yield hs.get_datastore().count_daily_messages()
r30_results = yield hs.get_datastore().count_r30_users()
for name, count in r30_results.iteritems():
stats["r30_users_" + name] = count
daily_sent_messages = yield hs.get_datastore().count_daily_sent_messages()
stats["daily_sent_messages"] = daily_sent_messages
stats["cache_factor"] = CACHE_SIZE_FACTOR
stats["event_cache_size"] = hs.config.event_cache_size
if len(stats_process) > 0:
stats["memory_rss"] = 0
stats["cpu_average"] = 0
for process in stats_process:
stats["memory_rss"] += process.memory_info().rss
stats["cpu_average"] += int(process.cpu_percent(interval=None))
logger.info("Reporting stats to matrix.org: %s" % (stats,))
try:
yield hs.get_simple_http_client().put_json(
"https://matrix.org/report-usage-stats/push",
stats
)
except Exception as e:
logger.warn("Error reporting stats: %s", e)
def performance_stats_init():
try:
import psutil
process = psutil.Process()
# Ensure we can fetch both, and make the initial request for cpu_percent
# so the next request will use this as the initial point.
process.memory_info().rss
process.cpu_percent(interval=None)
logger.info("report_stats can use psutil")
stats_process.append(process)
except (ImportError, AttributeError):
logger.warn(
"report_stats enabled but psutil is not installed or incorrect version."
" Disabling reporting of memory/cpu stats."
" Ensuring psutil is available will help matrix.org track performance"
" changes across releases."
)
def generate_user_daily_visit_stats():
hs.get_datastore().generate_user_daily_visits()
# Rather than update on per session basis, batch up the requests.
# If you increase the loop period, the accuracy of user_daily_visits
# table will decrease
clock.looping_call(generate_user_daily_visit_stats, 5 * 60 * 1000)
if hs.config.report_stats:
logger.info("Scheduling stats reporting for 3 hour intervals")
clock.looping_call(phone_stats_home, 3 * 60 * 60 * 1000)
# We need to defer this init for the cases that we daemonize
# otherwise the process ID we get is that of the non-daemon process
clock.call_later(0, performance_stats_init)
# We wait 5 minutes to send the first set of stats as the server can
# be quite busy the first few minutes
clock.call_later(5 * 60, phone_stats_home)
if hs.config.daemonize and hs.config.print_pidfile:
print (hs.config.pid_file)
_base.start_reactor(
"synapse-homeserver",
hs.config.soft_file_limit,
hs.config.gc_thresholds,
hs.config.pid_file,
hs.config.daemonize,
hs.config.cpu_affinity,
logger,
)
def main():
with LoggingContext("main"):
# check base requirements
check_requirements()
hs = setup(sys.argv[1:])
run(hs)
if __name__ == '__main__':
main()
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